CHICAGO-LATROBE 57719 29PC 135 Degree Heavy-Duty Screw Machine Lngth Drill Set

The CHICAGO-LATROBE 57719 is a screw machine drill bit set consisting of 29 high speed steel bits with a fractional inch size range from 1/16" to 1/2" by 64ths. The bits feature a split point tip with a 135-degree point angle, a black oxide finish, two spiral flutes, and a straight shank, specified for right-hand rotation/cutting applications. The set is housed in a metal drill index for organized storage. The bits conform to NAS 907 Type C standards (dimensional requirements) and are designed with screw-machine length.

Key Features:

• - Number of drill bits: 29 pieces covering sizes from 1/16" to 1/2" fractional inch increments.
• - Material: Heavy duty high speed steel with black oxide finish.
• - Bit type: Screw machine drill bits with straight shanks and two spiral flutes.
• - Point type: Split point with a 135° angle for split point with a 135° point angle.
• - Cutting direction: Right hand rotation.
• - Drill length: screw-machine length suitable for screw-machine length.
• - Included in a metal drill index case for organized storage.
• - Helix angle range: 21° to 34° for efficient chip evacuation.
• - Conforms to NAS 907 Type C standards (dimensional requirements).

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